Unstable angina is a condition in which your heart doesn't get enough blood flow and oxygen. It may lead up to a heart attack.
Angina is a type of chest discomfort caused by poor blood flow through the blood vessels (coronary vessels) of the heart muscle (myocardium).
Stable angina Variant angina
Accelerating angina; New-onset angina; Angina - unstable; Progressive angina
Causes, incidence, and risk factors
People with unstable angina are at increased risk of having a heart attack.
Risk factors for coronary artery disease include:
- Family history of early coronary heart disease -- a close relative such as a sibling or parent had heart disease before age 55 (in a man) or before age 65 (in a woman)
High blood pressure
- Male gender
- Not getting enough exercise
- Older age